Lamp.



E. A. KUEN.

LAMP.-

APPLICATION FILED APR. s. 1916.

ifla Two I I Patented ay 1, 191?.

2 SHEETS-SHEET I.

E. A. KUEN.

LAMP. APPLICATION FILED APR. 8,1916- "P 1 QQEQQ, 1 ?90 Patented May 1, 191;,

I 2 SHEETS-SHEET 2. v KM m EMW r T I W 55 Hi barren sra'rns earner ent ies.

EUGENE A. KUEN, OF CINCINNATI, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS, T0 CORCORAN-VIGTOB COMPANY. OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

LAMP.

Specification of Letters Patent.

' Patented May 1,191

Application filed April 8, 1916. Serial No. 89,841.

To all whom it may concern:

Be it known that I, EUGENE A. KUEN, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in .Lamps, of which the following is a specification.

My invention relates to lamps of the headlight type, such, for instance, as are used for headlights for vehicles, for instance automobiles.

It is the object of my invention to provide a simplified lamp of this character, and the invention will ;be further readily understood from the following description and claims, and from the drawings, in which latter:

Figure 1 represents a bottom perspective view of the lamp, showing the body, reflector and closure in separated relations.

Fig. 2 is a front elevation of the same, partly broken away for better illustration of the parts.

Fig. 3 is a detail of the closure retaining means shown in outside side elevation, with the reflector and closure removed.

Fig. 4 is an inside side elevation of the same.

Fig. 5 is. a longitudinal section taken in the plane of the line 55 of Fig.6, showing a'detail of the closure retaining means.

Fig. 6 is a cross-section of the same taken on the line 66 of Fig. 5; v

Fig. 7 is a longitudinal section takenin the plane of the line 7-7 of Fig. 2, showing a detail of the means for holding the reflector-in position; and,

Fig. 8 is a longitudinal section showing a modification of the clamp.

11 represents the body of the lamp, 12 the reflector and 13 the closure. The reflector is shown as a parabolic metal reflector arranged to'be received in the body, which is shown of similar form, of metal. The body is provided with a suitable attaching lug or lugs 14 for securing the same to..a suitable post or vehicle part, the ,lug extending through an opening 15 in the body, being integral with a flange 16 secured by rivets 17 in the inside of the body.

The body' is shown of general parabolic form and adjacent to its outer end is provided with an' outward flare 18 from which an annular flange 19 projects forwardly.

wardly projecting annular lip 22 arranged to position a transparent member 23 of the closure which may, for instance, be of glass, the transparent member being held to the ring-member by suitable means, as by clips 21 received across the edge of the transparent member and secured, as by soldering, to the ring-member. 25 is a light-bulb suitably mounted.

Means are provided between the closure and body for drawing the closure toward the body by relative rotation between the closure and body. I have exemplified these means as comprising slots 28 in the forward part of the body, the slots having front inclined walls 29. At its forward edge the body is provided with inwardly extending recesses 30 which lead into the slots 28;

The ring-member is provided with inwardly extending pins 33, secured to the flange 21. Each of the pins is fastened, as by having the flange pressed between the head 34 of the pin and a shoulder struck up from the pin, as by pressure.

The reflector is arranged to be positioned with relation to the body, and is instanced as having an annular groove 38 in its front end in which an annular cushion is received and suitably secured, as by being cemented therein. This annular cushion may be a cord, fabric or other cushioning ma terial. The reflector may be further pro vided with an outwardly extending flange, which may comprise a rearwardly extending portion 41 and a rearwardly and outwardly flaring portion 42, arranged to be seated on the body, as in the corner 43 between. the outwardly flaring portion 18 and the ann'w lar flange 19 of the body.

The outer peripheral edge of the reflector is provided with notches 45 which are ranged to pass the walls of the recesses and inwardly extending protuberanees these protuberances being indented into w flange 19 adjacent its rear end. The flector is thereby placed in seating in the corner 43 and, upon pa rtiaii'v the same, the notches 45 are brorg'ht or iii radial range with said protuberances and walls of the recesses, whereby the reflector is held in the body. When it is desired to locate the closure upon the body, the closure is located centrally with relation to the front of the body and moved rearwardly, so that its cylindrical flange 21 is received about the forwardly extending cylindrical flange 19 of 1c the body. The rearward movement of the closure will cause its pins 33-to p..ss into the recesses 30 and through these recesses into the slots 28. Upon rotation being imparted to the closure, the pins will ride upon the inclined front walls 29 of the slots 28, whereby approach between the closure and the body is caused. This rotative movement and the consequent approach may continue until the annular cushion-member 39 has been sufiicient-ly compressed to insure a firm holding of the reflector, closure and door relatively one to the other.

In the present exemplification, the position between the reflector and the body is comparatively non-yielding. Owing, therefore, to differences which may occur in the manufacture of the parts and the differences in thickness of the glass 23, I have provided means whereby the closure and body may be 80 secured to each other at various relations of rotative movement between the closure and body, so that when the closure, reflector and body have been sufliciently pressed together, the parts may be secured together in such relation. My preferred construction comprises latch between thebody and closure, ar-

ranged to be brought into latching relation at various relative rotative positions.

40 I I have exemplified the securing means as a series of keepers 51, arranged to be resiliently held toward one of the pins 33. The keepers are shown struck up from a plate 52, which has a shank 53 secured to the body 46 of the lamp, as by means of a rivet 54 and being received under the flange 16 extending in the inside of the body from the attaching lug 14, the shank being received between the flange and the wall of the body. The shank is preferably a spring shank. A knob 57 extending from the shank is arranged for pressing the keepers inwardly out of range of the pin coacting therewith. The knob is suitably fixed to the shank, as by being provided with a reduced threaded inner end 58 received through a'hole in the shank and having a clamp-nut 59 thereon, clamping the shank between the nut and the shoulder 60 at the knob. During the locking move- 60-ment the pin readily climbs the. fear inclined faces 61 of the keepers, so that the pin is received behind successive keepers during rotative movement of the closure in drawing the closure toward the body. The 66 outer flange of the reflector is provided with a notch 62 for clearing the keeper and its shank, the latter having movement in the clearance space provided by said notch, as indicated in Fig. 5.

If desired the knob may be arranged to clamp the keepers toward the cooperating part or pin, as by fixing a threaded stem (36 to the shank 53, which may be done by riveting as shown at 67, or soldering or brazing, to prevent turning of the stem, a clamp-nut 68 being threaded over the threaded stem 66, the stem passing through a'hole in the lamp body. By this means the plate 52 may be clamped upon the pin when the closure has been rotated suflicie'ntly to clamp the at body, reflector and closure together. When it is desired to remove the closure, the nut 68 is unscrewed and the'plate 52 pressed in-' wardly thereby to release the pin 33.

If desired,'the entering end of the slot 28 83 may be provided with a track. 31, shown formed by bending over the rear wall of the recess 30 in the form of a flange, adapted to be contacted by the pin 33, for directing the pin into and out of the slot, a plurality of the'slots-being provided with these tracks. When these tracks are employed and the closure is assembled on the body, the pins 33 will contact the tracks 31 and ride there'- along through the recesses 30 into the slots 28. When removing the closure a reverse rota tion of the closure will cause the pins 33 to contact the tracks 31, which thereby guide the pins and consequently the closure out- 7 wardly at the end of the retractive rotation of the closure, aiding in the convenience of the removal of the closure.

Having thus fully described jmy invention, what I claim as new and desire to secure by Letters Patent, is:

1 In a lamp, the combination of a body, a reflector, a closure, means between said closure and body causing relative approach between said closure and'body and pressure upon said reflector by relative rotative movement between said closure and body, and means for selective fixing of said closure to said body at various selective points of said relative rotative movement.

2. In a lamp, the combination of a body,

a closure, a reflector between said closure and body, means between said closure and body causing pressure upon said reflector by relative rotative movement between said closure and body for clamping said closure, reflector and body together, and means he tween said closure and body fixing said closure and body together at various selective points of relative rotation between the same.

3. In a lamp, the combination of-a body, a reflector, said body and reflector having a seat between them, an annular cushion at the front of said reflector, a closure, means between said closure and body caus- 130 closure'and body by relative rotative move-- ment between the same, and means between said closure and body for selective fixing of said closure to said body at selective points of said relative. rotation.-

at. In a lamp, the combination of a body, a closure and a reflector, constituting lampparts, means between said closure and body causing relative approach between said closure and body by relative rotative movement between said closure and body, and means between a pair of said lamp-parts selectively fixing the rotated lamp-part against retractive rotation at various points in its rotation.

5. In a lamp, the combination of a body, a closure and a reflector, constituting lampparts, annular cushioning means between the forward portion of said reflector and.

said closure, annularly arranged locating means between said reflector and body 10- eating said reflector in said body, means between said closure and body causing relative approach between said closure and body by relative rotation between said closure and body, and means between a pair of said lamp-parts selectively fixing the rotated lamp-part against retractive rotation at various points in its rotation.

6. In a lamp, the combination of a body,

a closure and a reflector, constituting lampparts, annularcushioning means between the forward portion of said reflector and said closure, means between said reflector and body resisting approach between the same, and means between said closure and body causing relative approach between said closure and body by relative rotation between said closure and body, said lampparts provided with means for resisting relative retractiverotation at a plurality of points in said relative rotation.

7 In a lamp, the combination of a body, a closure, a reflector provided with a laterally outwardly extending flange received in said body, means between the peripheral portions of said closure and said body causing relative approach between said body and closure and pressure upon said reflector by relative rotation between said closure and body, and a lock between said body and closure fixing said closure and body at various rotated relations, said reflector provided with an edge-slot in which said lock is received.

8. Ina lamp, the combination of a body,

a closure, a reflector between said closureand body, and means between said closure and body causing relative axial approach between said closure and body and pressure upon said reflector by relative rotative movement between said closure and body, said closure and body constituting a plural ity of lamp-parts, one of said. lamp-parts provided with a plurality of keepers, and the other of said lamp-parts provided with a part selectively coacting with said keepers dependent on various points of rotative relation between said lamp-parts.

9. In a lamp, the combination of a body and a closure constituting a plurality of lamp-parts, a reflector between saidclosure and body, means between said closure and body causing relative axial approach between said closure and body and pressure upon said reflector by relative rotative movement between said closure and body,

one of said lamp-parts provided with a plu rality of keepers and the other of said lampparts provided with a part selectively engaging With said keepers dependent on various points of rotative relation between said lamp-parts, and means causing said engagement.

10. In a lamp, the combination of a body, a parabolic reflector received in said body, said body and reflector provided with means resisting relative approach between said reflector and body, said body and reflector provided with means resisting axial movement of said reflector out of said body, a closure, means between said closure and body causing relative approach between said closure and body and pressure upon said reflector by relative rotation between said closure andgsaid body, and latching means between said closure and body acting to latch said closure to said body at a plurality of points in said relative rotation.

11. In a lamp, thecombination of a body having a forward forwardly projecting annularly arranged wall, a parabolic reflector in said body, a closure having a rearwardly projecting annular-1y arranged wall, said first-named wall provided with a plurality of slots having inclined front walls, said closure provided with pins received in said slots and coacting with said inclined walls to draw said closure toward said reflector and body by rotation of said closure, and a latch between said closure and body acting to latch said closure and body together at a plurality of points of said rotation of said closure.

12. In a lamp, the combination of a body having a forward forwardly projecting annularly arranged wall, a parabolic reflector in said body, a closure having a rearwardly projecting annularly arranged wall, said first-named wall provided with a plurality of slots having inclined front walls, and said closure provided with inwardly extending pins received in said slots and coacting with said inclined walls to draw said closure toward said reflector and body by rotation of said closure, a spring latch secured to said body and extending forwardly and provided with a plurality of keepers inside said firstnamed wall arranged to'coact with said cloand for relatively separating said closure sure at a plurality of points in said rotation, and the periphery of said reflector provided with a notch for said latch.

13. In a lamp, the combination of a body and a closure constituting a plurality of lamp-parts, and a reflector between said closure and body, one of said lamp-parts provided with a plurality of slots having inclined front walls, the other of said lampparts provided with projections received in said slots, and arranged for connecting said closure and body by rotative movement between the same, and the rear faces of the beginning portions of said slots provided with tracks directing said pins into said slots upon assembling said closure on said body 1 and body upon retractive rotation between the same.

14. In a lamp, the combination of a body having a forward forwardly projecting annularly arranged wall, a parabolic reflector in said body, and a closure having a rearwardly projecting annularly arranged wall, said first-named wall provided with a plurality of slots having inclined front walls, said closure provided with inwardly extending pins received in said slots coacting with said inclined walls to draw said closure toward said reflector and body by rotation of said closure, the rear parts of the entrance portions of said slots provided with slanting tracks for directing said pins forwardly upon retracti've rotative movement of said closure.-'

15. In a lamp, the combination of a body having a forward forwardly projecting annularly arranged wall, a parabolic reflector 7 in said body, a closure having a rearwardly projecting annularlv fll 'finflfid wall. said first-named wall provided with a plurality of slots having inclined front Walls, said closure provided with inwardly extending pins received in said slots coacting with said inclined walls to draw said closure toward said reflector and body by rotation of said closure, the entrance portions of said slots provided with slanting tracks for directing said pins forwardly by relative rotative movement of said closure, and means between said closure and body for selectively fixing said closures 'to said body at various selective points of said rotative movement.

16. In a lamp, the combination of a body having a forwardly extending annular forward end, a reflector received in said body, a closure extending across the front end of saidreflectorand having a rearwardly extending annular flange received about said forward end of said body, said annular outer end of said body provided with inwardly extending recesses forming tracks at one side of said recesses and provided with slots extending from the other side of said recesses, said slots having inclined front walls and said tracks being inclined from said one side of said recesses toward the rear wall of said slots, and pins extending inwardly from said rearwardly extending annular flange of said closure received through said recesses into said slots and directed out of said slots through said recesses by riding on said tracks.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

EUGENE A.-KUEN. Witnesses:

DAwsoN E. BRADLEY, THERESA M. SILBER. 

